Gearing for windmills



(No Model.)

U. W. ROBERTS.

. GEARING FOR. WINDMILLS. No. 304,454. Patented Sept. 2, 1884.

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llNITED STATES ATENT FFIcE.

CHARLES V. ROBERTS, OF OSKALOOSA, KANSAS, ASSIGNOR OF ONE-HALF TO THOMAS M. VAN COURT, OF OMAHA, NEBRASKA.

GEARING FOR WINDMILLS.

SPECIFICATION forming part of Letters Patent No. 304,454, dated September 2, 1884.

Application filed March 6, 1884.

To all whom it may concern:

Be it known that LCHARLES W. ROBERTS, vof Oskaloosa, in the county of Jefferson and Stateof Kansas, have invented certai-n new and 5 useful Improvements in Gearing for Windmills,.of which the following is a full, clear, and exact description.

This invention consists in'a certain combination of double gears and shafts for trans- IO mitting rotary motion from the wheel-shaft of the mill to the line or driving shaft, with provision for certain of the driving-gears to run idle in a back direction when" the mill shifts or turns in thewind, substantially as herein- 15 after described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 represents a sectional elevation of the transmitting and driving mechanism of the mill in its relation with the turn-table thereof, and Fig. 2 is a plan view of the same.

A is the wheel-shaft of the mill, said shaft 2 carrying the wind-wl1eel on its forward end,

as at b. On this shaft are fitted two miter or bevel wheels, B O, the same being made to engage with the shaft by pawls and ratchets 0 (1, arranged to admit of said wheels running idle when moving back with the shifting or turning of the wheel in the wind along with the turntable S of the mill, but so that said wheels 13 O are driven with or by the shaft A, when the wheel is not being shifted by the wind. These miter or bevel wheels B O are arranged to gear with and drive in opposite directions two other miter or bevel wheels, D E, having the same vertical axis, on the one side of which the wheel B engages with the 0 wheel D, and on the other side thereof the (N0 model.)

wheel 0 engages with the wheel E. The wheel D is fast on the upper end of avertical tubular shaft, F, which carries at its lower end another miter or bevel wheel, G, and the wheel E is fast upon a shaft, H, arranged to pass 5 down through the hollow shaft F, and having secured on its lower end a miter or bevel wheel, I. The wheels G and I accordingly revolve in opposite directions, and the upper gears are so proportionedthat the reverselymoving upright shafts F H travel at the same speed. Said wheels G and I are of like diameters and engage on opposite sides of its axis with another miter or bevel wheel, J, fast upon the line or driving shaft K, from which 5 5 motion is taken to put in operation' the meclr anism or devices the mill is designed to work.

By this system of duplicate and reverse gears with their shafts arranged to give rotary motion to the line or driving shaft of the mill one sided or lateral pressure upon the lineshaft is avoided, and the strain and wear is so generally divided over the several gears that there is much less liability to breakage, and a steadier or more uniform rotary driving motion is obtained. f

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

The combination,with the wind-wheel shaft A of the mill and its ratchetengaged wheels B O, of the wheels D E, the shafts F H, the wheels Gr I, the line or driving shaft K, and the wheel J, arranged for operation in relation with each other, substantially as and for the 75 purposes herein set forth.

CHARLES WV. ROBERTS. \Vitnesses:

BENJ. WALKER, T. H. NOBLE. 

